A computational strategy for damage‐tolerant design of hollow shafts under mixed‐mode loading condition

Lepore, Marcello Antonio; Yarullin, R.; Maligno, Angelo; Sepe, Raffaele

doi:10.1111/ffe.12934

Cited by 3 publications

(2 citation statements)

References 33 publications

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“…Whether it is from industrial design thinking or production practice, it has brought new creative space and possibilities, but its research has not revealed the limitations of 3D printing in industrial design. It is not conducive to the final predictive analysis [5].…”

Section: Introductionmentioning

confidence: 99%

Innovation Strategy of 3D Printing in Industrial Design Based on Vision Sensor

Sun¹

2021

Journal of Sensors

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3D printing is becoming increasingly integrated across all disciplines affecting traditional manufacturing. Traditional subtractive and isomaterial processing techniques make it difficult to process and manufacture complex structures such as spatial surfaces and complex cavities. Traditional processing and manufacturing processes are complex. Cumbersome clamps are also a drawback of traditional machining. Compared to traditional processing and manufacturing, 3D printing has significant advantages in manufacturing processes and manufacturing complex structures. Based on this, this paper studies the application of visual sensor 3D printing technology in industrial design and further studies the innovative free design methods under the implementation of 3D printing to provide a design basis for solving industrial product processing troubles and complex structures. This paper first provides a theoretical analysis of the combination of 3D printing of vision sensors and innovative design of industrial products. Next, take two classic industrial parts, a mechanical hydraulic valve block, and a crankshaft, as an example, and adopt an innovative and free design method to get an optimized pipeline of hydraulic valve blocks. The crankshaft molding structure integrated with the structure of the lightweight block demonstrates the superiority of 3D printing technology over the innovative design and manufacture of industrial products. Experiments have proved that the molding direction 1 consumes the least time and consumables (5 h 3 min, 24.44 m), but the inner channel is a blind hole, and it is difficult to remove the support after processing. The molding direction 2 consumes a little more consumable but not too much, but the channel supports are all easy to remove, and molding direction 3 has no advantage in all aspects. Research on industrial design innovation strategy of vision sensor 3D printing technology not only leads to the realization of vision sensor 3D printing technology and its equipment. It also provides a specific reference for the green and intelligent development of the future high-end equipment manufacturing industry.

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Section: Introductionmentioning

confidence: 99%

Innovation Strategy of 3D Printing in Industrial Design Based on Vision Sensor

Sun¹

2021

Journal of Sensors

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“…The experimental results showed different crack propagation mechanisms in notched and unnotched specimens. Citarella et al 18 and Lepore et al 19 investigated the crack propagation of an edge crack in a cylindrical specimen under multiaxial cyclic loading conditions. Nevertheless, the numerical simulation technique adopted in these studies was inefficient in replicating the pure torsion loading condition.…”

Section: Introductionmentioning

confidence: 99%

Numerical and experimental investigation of mixed‐mode crack growth in aluminum alloys

Amato

Yarullin

Shlyannikov

et al. 2022

Fatigue Fract Eng Mat Struct

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Fatigue crack growth in Al 2024 and Al 7050 specimens was assessed experimentally and numerically. In the experimental investigation, various specimen configurations and loading conditions were used to achieve pure mode I, pure mode II, and mixed mode I/II, I/III, and I/II/III. Sample configurations were as follows: first, compact tension shear (CTS) specimen to reproduce pure mode-I and pure initial mode-II loading conditions; second, surface crack tension (SCT) specimen to analyze the behavior of semielliptical surface cracks in mode-I and mixed-mode conditions; and third, hollow cylindrical (HC) specimen with initial semielliptical surface crack to analyze fatigue crack growth under complex stress state. In the numerical study, finite element method (FEM) simulations were performed by means of FRANC3D and ABAQUS solver. The numerical predictions were validated with the experimental results. These predictions resulted to be accurate estimation of the crack growth across the broad range of the investigated loading conditions.

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